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Could Not Configure /dev/net/tun Device Or Resource Busy

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jefro View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by jefro Tags qemu, slack, tap Thread Tools Show Printable Version Email this Page Click Here to receive this Complete Guide absolutely free. What to do when using your private key from another computer? An error appears either in libvirtd.log, /var/log/libvirt/qemu/name_of_guest.log, or in both, similar to the below message: warning: could not open /dev/net/tun: no virtual network emulation qemu-kvm: -netdev tap,script=/etc/my-qemu-ifup,id=hostnet0: Device 'tap' could have a peek at this web-site

Previous by thread: Re: Connecting to Sun EBS client via java web page Next by thread: Re: Starting KVM with public bridge as normal user Index(es): Date Thread current community blog How can I tell whether a generator was just-started? you > will also need to make sure that your user has the ability to read and write > to /dev/net/tun. Someone should really fix this. http://unix.stackexchange.com/questions/243382/making-dev-net-tun-available-to-qemu

Could Not Configure /dev/net/tun Device Or Resource Busy

Related 4difference tun/tap, is the interfaces that handle protocols or the OS?2Is there a way to emulate a wireless card in qemu / kvm?1qcow2 and qemu-system-arm7logging and debugging for qemu virtual For example, openvswitch was not supported in libvirt until libvirt-0.9.11, so in older versions of libvirt, was the only way to connect a guest to an openvswitch bridge. Are you new to LinuxQuestions.org?

It seems to work fine without setting up a tap device. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community. Device 'tap' Could Not Be Initialized Kvm vm start hang, then I stop the vm but the tap device is not cleaned, then I can restart it Do you know how I can remove the tap interface manually

Blogs Recent Entries Best Entries Best Blogs Blog List Search Blogs Home Forums HCL Reviews Tutorials Articles Register Search Search Forums Advanced Search Search Tags Search LQ Wiki Search Tutorials/Articles Search Could Not Configure /dev/net/tun: Operation Not Permitted However, it is sometimes necessary to use this type of interface to take advantage of some other facility that is not yet supported directly in libvirt. This guest should be able to connect to the hosts samba and postgres server, except external networks such the internet. The following steps need to be done as root.First i've created the bridge, set an ip address and started itbrctl addbr br0 ip addr add 192.168.179.1/24 broadcast 192.168.179.255 dev br0 ip

PrevNext [Date Prev][Date Next] [Thread Prev][Thread Next] [Thread Index] [Date Index] [Author Index] [libvirt-users] libvirt 0.9.9: could not open /dev/net/tun: Operation not permitted From: "Fischer, Anna" option to tunctl specifies which user has ownership of the tap device. Did Donald Trump say that "global warming was a hoax invented by the Chinese"?

Could Not Configure /dev/net/tun: Operation Not Permitted

Versions: qemu 1.7.0 on slackware 32bit 14.1 insectiod View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by insectiod 01-08-2014, 03:16 PM #2 So the question is, why the virbrX interfaces can't be set up by the ip utility.EDIT: If i run the VM at least the used interface virbr1 gets active, but virbr1-nic Could Not Configure /dev/net/tun Device Or Resource Busy asked 1 year ago viewed 2189 times active 11 months ago Linked 4 Which user group can use the 'tap' net device? Could Not Open /dev/net/tun: Operation Not Permitted Word for fake religious people Is it possible to see animals from space?

How could giant intelligent creatures afford to live in a human-majority civilisation? http://awendigital.com/could-not/could-not-find-device-for-boot-not-a-block-device.html Next message: [pve-devel] random vm start fail but tap device not cleaned. Or you could chmod /dev/net/tun but I suspect that's not any more secure than running qemu as root. How to send the ESC signal to vim when my esc key doesn't work? Could Not Configure Dev Net Tun Invalid Argument

Some [email protected] keeps sending mails about invalid commands, so I was confused if I should subscribe and resend the mail. Offline #3 2014-06-09 10:37:50 ulixes Member Registered: 2010-02-09 Posts: 14 Re: [SOLVED] Qemu and host-only networking Thanks for the suggestion with virsh. Pinging the host succeded and neither of my guests (SliTaz Linux, Windows 7) were able to connect to external networks, thus the internet.I've started the guests withqemu-system-x86_64 -enable-kvm -m 1024 -netdev Source You can then use regular iptables filewall rules to restrict access to the outside world from any VM connecting out through the bridge interface.

How to respond to a ridiculous request from a senior colleague? Tunsetiff Operation Not Permitted It seems my network hardware doesn't like this. And the interfaces are indeed down:> ip addr show virbr1 7: virbr0: mtu 1500 qdisc noqueue state DOWN group default link/ether 52:54:00:55:9c:fa brd ff:ff:ff:ff:ff:ff inet 192.168.101.1/24 brd 192.168.101.255 scope global

debug1: identity file /home/user/.ssh/id_dsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5p1 Debian-6+squeeze2 debug1: match: OpenSSH_5.5p1 Debian-6+squeeze2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 ...

Pinging the host succeded and neither of my guests (SliTaz Linux, Windows 7) were able to connect to external networks, thus the internet.I've started the guests withqemu-system-x86_64 -enable-kvm -m 1024 -netdev Join our community today! I use a tap and a bridge device and dnsmasq. Could Not Configure Dev Net Tun Tap0 So please do run strace and see exactly what ioctl is failing. –Gilles Nov 16 '15 at 19:06 @Gilles strace output added. –Nathan Osman Nov 16 '15 at 19:12

Thanks -- Tong (remove underscore(s) to reply) http://xpt.sourceforge.net/techdocs/ http://xpt.sourceforge.net/tools/ Reply to: debian-user@lists.debian.org T o n g (on-list) T o n g (off-list) Follow-Ups: Re: Starting KVM with public bridge as normal However, with type='ethernet' configured, in an attempt to lock down QEMU, libvirt and SELinux have put in place several checks to prevent this. (Normally, libvirt performs all of the tap device I did not activate ipv4 forwarding like mentioned in the wiki! have a peek here Instead, I configured a virtual network for my VMs using libvirt. (If you don't know, libvirt is a very nice shell that manages QEMU/KVM and other virtualization packages.) The host sees

Why is credit card information not stolen more often? Is the form "double Dutch" still used? It's surprisingly simple. Good job.

They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Thanks.